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` niteh .gisten atmt @ffice JAMES J. JOHNSTON, OF ALLEGHEN Y CITY, PENNSYLVANIA. Letters Patent No. 62,207, dated Feruarg/ 19, 1867.

IMPROVED BRICK MACHINE.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JAMES J'. JOHNSTON, of the city and county of Allegheny, in the State of Pennsylvania,

have invented a new and useful improvement in Brick Machines and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the'accompahying drawing, and the letters of' reference marked thereon.

My' invention consists in constructing a brick machine with a revolving mould disk, so arranged that it will stop at proper intervals for the filling of the moulds, and until a brick-mould is pressed out of and carried oil' from the mould disk,'prior to said mould disk bringing forward another mould to he filled, the whole being constructed, arranged, and operating'substantially as hereinafter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construe* tion and operation. In the accompanying drawing, which forms part of my specification- Figure 1 represents a side ,elevation of my improvedbrick machine.

Figure 2 represents a top view of the same.'

Figure 3 represents a section of the mixing and filling shaft, showing the arrangement of the iillers on said shaft. i

In the drawings, A represents the frame of the machine; B represents the hopper, which is firmly secured to the frame A. Through the centre of the hopper passes a shaft, n, which is provided with a number of arms,

, marked 0', and near the bottom of the hopper, on the shaft n, are secured a number of arms, as shown in iig. 3,

and marked 11, 12, and 13, and arranged so that they will, by the revolving of the shaft, press the clay downwards. A number of arms, O, are secured to the sides of the hopper, and so arranged that they will come between the arms O on `the shaft. n. The shaft n has its lower bearing in a cross-piece of the frame A, and the upper end of the shaft n is held in position bythe cross-piece 7L, which 4is secured firmly to the hopper B. On the shaft n, near the upper end, is secured cam m, which is, in connection with the spiral spring 2, used for operating the plunger or press f, through the medium of the lever J, pivoted to the piece-z. The plunger or press f is pivoted at its upperl end to the lever J at the point marked 3, and. moves in the cross-piece 71., and the piece w secured to the hopper B. The mould disk C is secured on the shaft ml. The upper end of this shaft is held in position by the piece g, which is secured to the side of the hopper B, and the lower end of the 'shaft lm. has its bearing in a cross-piece of the frame A. The periphery of the mould disk is provided with cogs which gear into cogs of a sector or segment of` a wheel on shaft n, as indicated by the dotted lines 15. The mould disk C is provided with openings marked 10, for receiving the brick-moulds, and also opening 6 for the point 8 (represented by dotted lines) of locking pin, V, which is provided with an arm, q, and spiral spring 1, which is used for the purpose of forcing the point 8 of the locking pin V into the openings 6 of the mould disk. The point 8 of the locking pin V is withdrawn from out of the openings 6 by the cam 9 acting on the arm q of the locking pin. In the bottom'oi` the hopper B is an opening, S, through which the clay passes down intothc brick-moulds in the mould disk C. This opening Sis provided with alid, R, which may-be slid out and in through the side of the hopper B.' The mould disk moves between the bottom of the hopper B and n. plate marked h. This plate h and the mould disk should be so arranged with relation to the bottom ofthe hopper B as to be easily adjusted and fitted to cach other in case of wear. The bearing-off table D rests on arms, :ci secured on the shaft n', which has its lower bearing in the piece marked'lfi secured tothe side of Iheframc A, and the upper end of the shaft n is held in position by the piece marked u, which is secured down on the angerz, of the hopper B. On the shaft n of the bearing-off table is a wheel, 5, the teeth or cogs of whichV gear into the cogs on the periphery of the mould disk. To the arms Xl are secured two hollow chambers marked P, in which are placed spiral springsfndicated by dotted lines,) and plungcrs with caps, t. The spiral springs' are used for the purpose of holding the caps t up to a level with the top surface of the table D, which is arranged to movc close under the mould disk.l On the side of the chambers P are attached springlatches,y,.which are used for holding down the caps tand the plungers to which they are attached, when said caps have been pressed down with the brick-moulds by the plungcrf through the medium of the lever J and cam m. The skilful mechanic will readily see and understand that the desired motion may be given to the mould disk and bearing-off table by a suitable arrangement of wheels on the lower part of the shafts 'n m and n', and itiwill also be seen that the driving power may be applied to the upper or lower partof .the shaft n. p

In order that thev skilful mechanic may more fully understand the various parts of my improved brick machine, I will proceed to describe their operation, which is as follows: I close the opening S with the lid R. I then take suitable clay for making brick and meisten it with water, after which I throwit into the hopper B. I then apply power by any suitable means to thc shaft n, and thc revolving of the shaft with its arms O, in connection with the arms O, secured to the sides of the hopper, will thoroughly mix the clay. I then place suitable brick-moulds in the openings 10 of the disk mould C, and draw out the lidItso that the clay can pass down through the openings S in the bottom of the hopper into the' moulds. The inclined arms 11, 12, and 13, shown in figure 3, will force the clay down int-o the moulds. I place twclves of these arms on the shaft n, so that eight of them will pass over the opening 'S for the purpose of filling the moulds, for be it observed that the mould disk brings the brick-moulds forward in succession, and as each mould comes directly under the opening S, the mould disk will stop a sutiicient time for the shaft n to make two-thirds of a revolution, the wheel 15.

having only Va suicient number of cogs to be operative on the mould `disk during one-third of a revolution of the shaft n, being sufficient to bring the brick-moulds under the opening S in regular succession. When a mould is brought directly under the opening S, the point 8-of the locking pin V enters one of the openings 6, and thereby prevents the mould disk from'moving during the process of filling the brick-mould with clay. It being supposed that a number of moulds have been filled and carried forward so that a mould is directly under the plunger or press f,'the revolving of the shaft n and cam m will raise up the end of the lever J, which will force down the plunger or pressf, (the end e of which is {ittod to the openings 10 of the disk 0,) and the downwardmotion of the plunger or pressf will force the mould out of the disk C upon the cap t of the bearingoii' table D, forcing down the cap t until it is caught by the 4spring-latch y. At this point the incline of the cam m will have passed from under the end of tbelever J, and the spiral spring 2, 'acting against the piece h and the outer end of levenJ, will raise thc plunger or press j' out of the opening in the disk C, and about the same time the cam 9, acting on the arm g, will press down the locking pin V, and thereby Withdraw its point 8 out of the opening 6, leaving the disk free to be moved by the wheel 15, the cogs of which by this time come in contact with the cogs of the disk C, and bring forward another mould, and the turning of the disk C will turn the bearing-ofi' table I) so as to bring it into the position represented in fig. 2. The brick-mould is then removed and borne oil" in the ordinary manner. In removing the brick-mould from the bearing-off table D, the springdatch y is unshipped from the cap t, and it rises up to a level with the plane of bearing-olf table, and is then ready for receiving another mould.

Having thus described the nature, construction, and operation of my improvement, what I claim as of my 1. A brick machine provided with a revolving disk C, filling and discharging the moulds or brick upon a bearing-oil` table D, the whole operating substantially as described, and for the purpose set forth.

2. The bearing-eti` table D, in combination with mould disk C, plunger or pressf, lever J', and cam m, constructed, arranged, combined, and operating substantially in the manner herein described, and for the purpose set forth. v

3. The locking pin V, provided with arm q, and spring l, when used in combination with the cam 9, and

openings 6, in the mould disk C, as herein described, and for the purpose set forth.

JAMES J. JOHNSTON.

Witnesses:

GEO. H. THoMAs, Gno. W. GLASS. 

